Answer:
The required inequality is
.
Step-by-step explanation:
From the given graph it is clear that the related line passing throguh the points (-6,0) and (0,14).
If a line passing through two points, then the equation of line is

The equation of related line is



Divide both sides by 7.


The equation of related line is
.
The relates line is solid line and the shaded region is below the line therefore the sides of inequality is ≤.
Therefore the required inequality is
.